How to mount a personal Jottacloud as a drive on Win10?

Rclone does not do that, but you just run multiple separate rclone commands.

Simplest solution: Create your own batch script mount.cmd containing something like this:

start "" rclone mount Vaio: J:
start "" rclone mount Work: K:
start "" rclone mount Photos: L:
start "" rclone mount Family: M:

Then there are more advanced solutions if you want to hide the rclone command prompt windows, automatically mount on Windows startup etc. There are several other forum posts around this, so try a search first if you want to explore this. For example: